EP2448687B1 - A coil winding device and method of winding an elongate member - Google Patents
A coil winding device and method of winding an elongate member Download PDFInfo
- Publication number
- EP2448687B1 EP2448687B1 EP10734540.7A EP10734540A EP2448687B1 EP 2448687 B1 EP2448687 B1 EP 2448687B1 EP 10734540 A EP10734540 A EP 10734540A EP 2448687 B1 EP2448687 B1 EP 2448687B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- body portion
- coil
- elongate member
- tube
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
- 238000004804 winding Methods 0.000 title claims description 75
- 238000000034 method Methods 0.000 title claims description 31
- 238000000137 annealing Methods 0.000 claims description 14
- 238000005482 strain hardening Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/32—Tongs or gripping means specially adapted for reeling operations
- B21C47/326—Devices for pressing the end of the material being wound against the cylindrical wall of the reel or bobbin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/02—Winding-up or coiling
- B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
- B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
- B21C47/3466—Feeding or guiding devices not specially adapted to a particular type of apparatus by using specific means
- B21C47/3491—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/2848—Arrangements for aligned winding
- B65H54/2851—Arrangements for aligned winding by pressing the material being wound against the drum, flange or already wound material, e.g. by fingers or rollers; guides moved by the already wound material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/33—Hollow or hose-like material
Definitions
- the present invention relates to a coil winding device and relates particularly but not exclusively to a device for winding a fully annealed tube into a coil with a minimum of work hardening.
- the process of annealing is commonly used on copper tubes in order to improve the properties of the tubing for use in products such as refrigeration units.
- coils of hard copper tube stored in baskets 10 are processed through an annealing line 12 to remove any work hardening before being re-coiled around a rotating axis to form multiple layers of coils of annealed copper 14.
- the process of re-coiling the copper tube after the annealing process itself introduces work hardening into the copper.
- a first method of winding a fully annealed tube into a coil is illustrated in figures 2a and 2b which show a set of rollers 100, the distance between which may be adjusted.
- a tube 102 may be wound into a coil by such rollers 100 by rolling a tube 102 between the rollers 100 when they are in a position so as to introduce a slight bend into the tube 102 as it passes between the rollers 100 as illustrated in figure 2b .
- the bent tube is then positioned such that as more of the tube 102 passes between the rollers 100 the bent portion of the tube 102 falls loosely onto a platform 104 which rotates about an axis 106 at a speed relative to that at which the tube 102 passes between the rollers 100.
- the position of one of the rollers 100 is constantly adjusted so as to alter the extent to which the tube 102 is bent such that the tube 102 forms concentric winds of varying diameter within each concentric coil on the platform 104 as it rotates.
- rollers 100 has a negative effect on the hardness of the tube 102, increasing it in proportion to the degree of bending required to achieve the diameters of each wind in a coil.
- Layers of coils produced using this method are loosely wound and have random spacing between each coil. The presence of overlapping winds of coils in different layers ensures that more cubic space per coil is required for packaging and transportation.
- the individual coils are more susceptible to damage during transport as the free space between the windings of each coil allows for movement and potential crushing of overlapping winds in concentric coil layers.
- nitrogen gas is required to be blown through the tube in an 'upstream direction' to the apparatus performing the annealing process.
- Such gas is used to displace oxygen from within a tube while it is being annealed to reduce the formation of impurities on the interior surface of the tube.
- the tube is manually coupled to a back purge system used to blow the nitrogen gas back through the tube.
- the first few windings of coil will not be correctly annealed as the tube will not have been running through the annealer at the correct speed. As a result, the first few windings of the finished coil will not be to specification.
- FIG. 3 A second method of winding a tube into a coil is illustrated in figure 3 .
- This figure illustrates a cylindrical drum 200 to which one end of tube 202 is fixed at a point 204.
- the drum 200 is then rotated about an axis 206 which causes the tube to wind around the drum 200.
- the drum 200 is made to move along the axis 206 about which it rotates at a speed relative to that of the rotation of the drum 200, such that each successive wind of the tube 202 about the drum 200 is translationally displaced along the axis 206 relative to the preceding wind.
- the windings of different coils are wound onto the drum 200 such that they are on top of each other, thereby resulting in the formation of a number of layers of coils around the drum.
- the drum 200 has flanges 203 which are adjustable to set the depth of the coil being produced.
- This second method of winding a tube into a coil has the advantage over the first method of more tightly winding the respective layers of coils and more accurately configuring the spacing between each coil.
- the second method has the disadvantage of applying significant work hardening to the tube while winding it into a coil. This requires that a length of tubing tightly wound by the second winding method must be annealed in an oven after the winding process. However, the maximum size of the coil is determined by the size of the annealing furnace.
- Preferred embodiments of the present invention seek to overcome the above disadvantages of the prior art.
- a device for winding an elongate member into a coil comprising the features of claim 1.
- This provides the advantage of minimizing the cubic space per coil required for packaging and transportation, and reduces susceptibility to damage during transportation of the individual coils by minimizing the free space between the windings of each coil which would otherwise allow for movement and potential crushing of overlapping winds in concentric coil layers.
- the winding device of the present invention has the further advantage of being able to provide the advantages above at the same time as minimizing the work hardening on a tube while it is being wound.
- the force application means comprises a second body portion from which a plurality of bristles extend.
- the bristles provide the advantage of being able to apply two perpendicular components of force to a tube while it is being wound so as to provide the advantages previously discussed.
- the second body portion defines a planar surface.
- the planar surfaces provide the advantage of providing a surface onto which a tube may be easily wound and unwound, and also simplifies any devices used to transport such a wound tube.
- At least one of the first or second body portions is adapted to move along the first axis.
- first and second body portions are adapted to move both relative to the guide portion along a second axis perpendicular to the first axis. This provides the advantage of more accurately controlling the diameter of each individual winding in a coil so wound using the device of the present invention.
- the device further comprises an annealing portion for annealing at least a portion of an elongate member before it is wound into a coil.
- an annealing portion for annealing at least a portion of an elongate member before it is wound into a coil.
- the elongate member is wound into a coil from an inside portion of the first body portion adjacent its centre to an outside portion of the first body portion adjacent its edge.
- the elongate member is wound into a coil from an outside portion of the first body portion adjacent its edge to an inside portion of the first body portion adjacent its centre.
- the first body portion 302 is adapted to move along axis 306 so as to bring the bristles 308 and former member 309 into contact with the tube 303 such that the bristles 308 bend around the tube 303.
- Each bristle 308 bent by the tube 303 exerts a force 310 on the tube 303.
- a bristle 308 bent by the tube 303 exerts a force on the tube 303 along direction 310.
- Such a force can be resolved into perpendicular first and second force components acting in perpendicular first and second directions 312, 314 respectively.
- Such components of force acting on the tube 303 therefore restrict movement of the tube 303 in directions parallel with the first and second directions 312, 314 along which the respective first and second force components of force 310 act.
- an end portion of an elongate tube 303, extending from a guide member 305, is fixably attached to the first body portion 302 adjacent its centre such that it is able to be wound around the former member 309 of the second body portion 304 when brought into engagement therewith.
- the bristles 308 and former member 309 of the second body portion 304 are then brought into engagement with the tube 303, such that the bristles 308 bend around it as shown in figure 5 .
- the first body portion 302 is then rotated about axis 306.
- the first and second body portions 302, 304 are both moved, at a speed relative to that at which the first body portion 302 rotates, along a second axis 307, perpendicular to the first axis 306, thereby causing the tube 303 to wind into a first coil consisting of a number of windings of increasing diameter, the innermost winding being in engagement with the former member 309 and each successive winding being increasingly further from the centre of the first body portion 302.
- the first coil which engages the first body portion 302
- the first body portion moves away from the second body portion by a distance of one tube diameter.
- the first and second body portions 302, 304 then both begin to move back along the second axis 307 at the same speed they did when winding the first coil.
- the second coil consists of an identical number of windings to that of the first coil, each winding of the second coil being on top of a corresponding winding in the first coil.
- the first body portion 302 When the second coil has been wound, the first body portion 302 is moved away from the second body portion 304 along axis 306 a dimension equal to the diameter of the tube 303 being wound. A third coil is then wound, on top of the second coil, with windings of increasing diameter, the innermost of which is in engagement with the former member and the outermost of which is adjacent the edge of the first body portion. The first body portion 302 is then again moved away from the second body portion 304 along axis 306 a dimension equal to the diameter of the tube 303 being wound. A forth coil with windings of ever decreasing diameter is then wound, on top of the third coil, the innermost winding of which engages the former member 309.
- This winding process is then repeated, moving the first body portion 302 along axis 306 relative to the second body portion 304 a dimension equal to the diameter of the tube 303 being wound after the winding of each successive coil, until the required number of coil layers has been built up on top of each other.
- the tube 303 When the tube 303 has been wound into the required number of coil layers the tube 303 is removed from the guide member 305 and the bristles 308 and former member 309 of the second body portion 304 are disengaged from the coils wound around the first body portion 302 which is subsequently removed from the device 300.
- the bristles 308 being bent by the tube 303 being wound into a coil exert two components of a force on the tube 303.
- One such component of force acts on the tube 303 in a direction towards the first body portion 302 thereby minimizing the distance between different coil layers in the pile of coil layers created by the device 300.
- a second component of force acts on the tube 303 along a direction perpendicular to the first body portion 302 towards the centre of the first body portion which pushes the respective windings in each coil together as they are being wound such that the coils are wound more tightly.
- a second component of force acts on the tube 303 along a direction perpendicular to the first body portion 302 away from the centre of the first body portion which pushes the respective windings in each coil together as they are being wound such that the coils are wound more tightly.
- the tube 303 is passed through an annealing device (not shown) before it is wound into a coil using the device 300. Because of this an inert gas such as nitrogen is blown through the tube 303, using a back purge system (not shown), while using the winding device 300 of the present invention.
- a tube 303 is automatically connected to the back purge system using an automatic clamping system, see figure 7 . In this instance, if the winding process must be stopped because tube 303 is not being annealed to specification upstream of the winding device 303, the tube in the system between the annealer and the winding device 300 which is not to specification is removed from the system and disposed of such that it will not become part of the finished coil.
- the clamping system 317 is mounted to the first body portion 302 and has a chamber 318 into which an inert gas is blown.
- a tube 303 being wound by the winding device 300 must before being wound, be first clamped in a position using the clamp 316 such that the end of the tube 303 extends into the chamber 318 so as to allow inert gas to be blown into the tube 303.
- the tube 303 exiting the guide 305 enters the clamping system 317 by passing through the guide and clamp actuator 319, and clamping element 316, such that the end of the tube extends within chamber 318.
- the guide and clamp actuator 319 is moved towards the clamping element 316 which clamps and seals the tube 303 before nitrogen back purging is initiated.
- the tube stays clamped throughout the winding process, which has been previously described, thereby enabling the complete length of tube 303 to be continuously back purged.
- the guide and clamp actuator 319 is moved away from the clamping element 316 which releases the tube 303.
- the winding device 300 may be used to wind elongate members not made from metal into a coil e.g. plastic.
- the winding device 300 may be able to rotate, and thereby wind a coil, in both clockwise and anti-clockwise directions. It is possible that, with all of the advantages previously discussed, an adaptation of the present invention would be able to wind a tube into a coil about a cylindrical body. Such an adaptation, which does not fall under the scope of the claims, is illustrated in figure 8 , wherein parts similar to those in figures 4A to 4C are labelled with like reference numerals increased by 100.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Winding Of Webs (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Coil Winding Methods And Apparatuses (AREA)
Description
- The present invention relates to a coil winding device and relates particularly but not exclusively to a device for winding a fully annealed tube into a coil with a minimum of work hardening.
- The process of annealing is commonly used on copper tubes in order to improve the properties of the tubing for use in products such as refrigeration units. With reference to
figure 1 , coils of hard copper tube stored inbaskets 10 are processed through anannealing line 12 to remove any work hardening before being re-coiled around a rotating axis to form multiple layers of coils of annealedcopper 14. However the process of re-coiling the copper tube after the annealing process itself introduces work hardening into the copper. - A first method of winding a fully annealed tube into a coil is illustrated in
figures 2a and 2b which show a set ofrollers 100, the distance between which may be adjusted. Atube 102 may be wound into a coil bysuch rollers 100 by rolling atube 102 between therollers 100 when they are in a position so as to introduce a slight bend into thetube 102 as it passes between therollers 100 as illustrated infigure 2b . The bent tube is then positioned such that as more of thetube 102 passes between therollers 100 the bent portion of thetube 102 falls loosely onto aplatform 104 which rotates about anaxis 106 at a speed relative to that at which thetube 102 passes between therollers 100. The position of one of therollers 100 is constantly adjusted so as to alter the extent to which thetube 102 is bent such that thetube 102 forms concentric winds of varying diameter within each concentric coil on theplatform 104 as it rotates. - This process however has a number of limitations. For instance the use of
rollers 100 has a negative effect on the hardness of thetube 102, increasing it in proportion to the degree of bending required to achieve the diameters of each wind in a coil. Layers of coils produced using this method are loosely wound and have random spacing between each coil. The presence of overlapping winds of coils in different layers ensures that more cubic space per coil is required for packaging and transportation. Furthermore, the individual coils are more susceptible to damage during transport as the free space between the windings of each coil allows for movement and potential crushing of overlapping winds in concentric coil layers. - When using this first method of winding a tube, nitrogen gas is required to be blown through the tube in an 'upstream direction' to the apparatus performing the annealing process. Such gas is used to displace oxygen from within a tube while it is being annealed to reduce the formation of impurities on the interior surface of the tube. Typically the tube is manually coupled to a back purge system used to blow the nitrogen gas back through the tube. In this instance, the first few windings of coil will not be correctly annealed as the tube will not have been running through the annealer at the correct speed. As a result, the first few windings of the finished coil will not be to specification.
- A second method of winding a tube into a coil is illustrated in
figure 3 . This figure illustrates acylindrical drum 200 to which one end oftube 202 is fixed at apoint 204. Thedrum 200 is then rotated about anaxis 206 which causes the tube to wind around thedrum 200. Thedrum 200 is made to move along theaxis 206 about which it rotates at a speed relative to that of the rotation of thedrum 200, such that each successive wind of thetube 202 about thedrum 200 is translationally displaced along theaxis 206 relative to the preceding wind. The windings of different coils are wound onto thedrum 200 such that they are on top of each other, thereby resulting in the formation of a number of layers of coils around the drum. Thedrum 200 hasflanges 203 which are adjustable to set the depth of the coil being produced. - This second method of winding a tube into a coil has the advantage over the first method of more tightly winding the respective layers of coils and more accurately configuring the spacing between each coil.
- However the second method has the disadvantage of applying significant work hardening to the tube while winding it into a coil. This requires that a length of tubing tightly wound by the second winding method must be annealed in an oven after the winding process. However, the maximum size of the coil is determined by the size of the annealing furnace.
- An apparatus according to the preamble of
claim 1 is disclosed inDE2649029A1 . - Preferred embodiments of the present invention seek to overcome the above disadvantages of the prior art.
- According to an aspect of the present invention there is provided a device for winding an elongate member into a coil, the device comprising the features of
claim 1. - By applying a force, having perpendicular first and second force components, to an elongate member like a tube as it is being wound into a plurality of coils layered on top of one another, allows each individual winding in a coil to be held in place while a coil is being wound. By applying to each respective winding in a coil while it is being wound a force in the direction of the preceding winding provides the advantage of more tightly winding a coil. By applying a downward force to each winding in a coil as it is being wound prevents the windings in respective layers of coils piled on top of one another from overlapping with the windings of coils in different layers. This provides the advantage of minimizing the cubic space per coil required for packaging and transportation, and reduces susceptibility to damage during transportation of the individual coils by minimizing the free space between the windings of each coil which would otherwise allow for movement and potential crushing of overlapping winds in concentric coil layers.
- The winding device of the present invention has the further advantage of being able to provide the advantages above at the same time as minimizing the work hardening on a tube while it is being wound.
- In a preferred embodiment the force application means comprises a second body portion from which a plurality of bristles extend.
- The bristles provide the advantage of being able to apply two perpendicular components of force to a tube while it is being wound so as to provide the advantages previously discussed.
- In another preferred embodiment also the second body portion defines a planar surface. The planar surfaces provide the advantage of providing a surface onto which a tube may be easily wound and unwound, and also simplifies any devices used to transport such a wound tube.
- In a further preferred embodiment at least one of the first or second body portions is adapted to move along the first axis.
- This provides the advantage of quickly winding a plurality of coil layers and minimizes the length of bristles required to provide the other advantages of the present invention.
- In another preferred embodiment, the first and second body portions are adapted to move both relative to the guide portion along a second axis perpendicular to the first axis. This provides the advantage of more accurately controlling the diameter of each individual winding in a coil so wound using the device of the present invention.
- In a further preferred embodiment, the device further comprises an annealing portion for annealing at least a portion of an elongate member before it is wound into a coil. This provides the advantage of minimizing the amount of work hardening of the coil once it is wound. Also by annealing a tube before it is wound into a coil allows individual portions of the tube to be separately annealed rather than annealing the entire tube at once after being wound into a coil. This provides the advantage of reducing the size of the furnace used to anneal a tube to be wound using the device of the present invention.
- According to another aspect of the present invention there is provided a method of winding an elongate member into a coil, comprising the steps of
claim 7. - In another preferred method, the elongate member is wound into a coil from an inside portion of the first body portion adjacent its centre to an outside portion of the first body portion adjacent its edge.
- In a further preferred method, the elongate member is wound into a coil from an outside portion of the first body portion adjacent its edge to an inside portion of the first body portion adjacent its centre.
- In a preferred method, further comprising the step of annealing the elongate member before it is wound into a coil.
- Preferred embodiments of the invention will now be described, by way of example only and not in any limitative sense, with reference to the accompanying drawings in which:-
-
Figure 1 is a schematic representation of a coil winding process of the prior art; -
Figure 2 is a perspective view of a first coil winding device of the prior art; -
Figure 3 is a perspective view of a second coil winding device of the prior art; -
Figure 4A is a first perspective view of a coil winding device according to the present invention; -
Figure 4B is a second perspective view of the coil winding device infigure 4A as viewed in the direction ofarrows 4B alongaxis 306; -
Figure 4C is a third perspective view of the coil winding device infigure 4A ; -
Figure 5 is a perspective view of the bristles of the coil winding device infigures 4A to 4C in engagement with the tube which is being wound; -
Figure 6 is a schematic representation of the forces which act on a tube while it is being wound using the coil winding device infigures 4A to 4C ; -
Figure 7 is a perspective view of an automatic clamping system used to clamp a tube to be wound to the coil winding device infigures 4A to 4C ; and -
Figure 8 is a perspective view of an adaptation of the coil winding device of the present invention, which does not fall under the scope of the claims. Referring tofigures 4A, 4B and4C , awinding device 300 is provided for winding an elongate member, for example ametal tube 303, into a coil. Thewinding device 300 has afirst body portion 302 and asecond body portion 304, which are both preferably disc shaped. Thefirst body portion 302 is adapted to rotate about afirst axis 306. The windingdevice 300 has fixing means for fixing a portion of atube 303, extending from aguide member 305, to thefirst body portion 302. The metal tube passes through theguide member 305 and connects to the purging unit within thefirst body portion 302 using an automatic clamping system, seefigure 7 . Thesecond body portion 304 has a plurality ofbristles 308, and a cylindricalformer member 309, extending therefrom in the direction of thefirst body portion 302. Thebristles 308 andformer member 309 preferably have a length which is approximately twice the diameter of thetube 303 that is to be wound into a coil by thedevice 300. Theformer member 309 has a diameter around which a tube can be bent without introducing an unacceptable amount of work hardening into the tube. Such a diameter may be approximately 600-700mm which is 50 to 60 times the tube diameter. - The
first body portion 302 is adapted to move alongaxis 306 so as to bring thebristles 308 andformer member 309 into contact with thetube 303 such that thebristles 308 bend around thetube 303. Each bristle 308 bent by thetube 303 exerts aforce 310 on thetube 303. A bristle 308 bent by thetube 303, as illustrated infigure 5 , exerts a force on thetube 303 alongdirection 310. Such a force can be resolved into perpendicular first and second force components acting in perpendicular first andsecond directions tube 303 therefore restrict movement of thetube 303 in directions parallel with the first andsecond directions force 310 act. - The process by which the winding
device 300 winds an annealed tube into a coil will now be described. Firstly an end portion of anelongate tube 303, extending from aguide member 305, is fixably attached to thefirst body portion 302 adjacent its centre such that it is able to be wound around theformer member 309 of thesecond body portion 304 when brought into engagement therewith. - The
bristles 308 andformer member 309 of thesecond body portion 304 are then brought into engagement with thetube 303, such that thebristles 308 bend around it as shown infigure 5 . Thefirst body portion 302 is then rotated aboutaxis 306. At the same time the first andsecond body portions first body portion 302 rotates, along asecond axis 307, perpendicular to thefirst axis 306, thereby causing thetube 303 to wind into a first coil consisting of a number of windings of increasing diameter, the innermost winding being in engagement with theformer member 309 and each successive winding being increasingly further from the centre of thefirst body portion 302. - When the first coil, which engages the
first body portion 302, has been fully wound, i.e. windings are wound from theformer member 309 to the edge of thefirst body portion 302, the first body portion moves away from the second body portion by a distance of one tube diameter. The first andsecond body portions second axis 307 at the same speed they did when winding the first coil. This causes thetube 303 to wind into a second coil on top of the first coil. The second coil consists of an identical number of windings to that of the first coil, each winding of the second coil being on top of a corresponding winding in the first coil. Because during the winding of the second coil the first andsecond body portions axis 306, moves back towards their original position, the windings in the second coil are wound with ever decreasing diameter, each winding being increasingly closer to the centre of thefirst body portion 302, the innermost winding of which engages theformer member 309 of the second body portion. - When the second coil has been wound, the
first body portion 302 is moved away from thesecond body portion 304 along axis 306 a dimension equal to the diameter of thetube 303 being wound. A third coil is then wound, on top of the second coil, with windings of increasing diameter, the innermost of which is in engagement with the former member and the outermost of which is adjacent the edge of the first body portion. Thefirst body portion 302 is then again moved away from thesecond body portion 304 along axis 306 a dimension equal to the diameter of thetube 303 being wound. A forth coil with windings of ever decreasing diameter is then wound, on top of the third coil, the innermost winding of which engages theformer member 309. This winding process is then repeated, moving thefirst body portion 302 alongaxis 306 relative to the second body portion 304 a dimension equal to the diameter of thetube 303 being wound after the winding of each successive coil, until the required number of coil layers has been built up on top of each other. - When the
tube 303 has been wound into the required number of coil layers thetube 303 is removed from theguide member 305 and thebristles 308 andformer member 309 of thesecond body portion 304 are disengaged from the coils wound around thefirst body portion 302 which is subsequently removed from thedevice 300. - The influence of the
bristles 308 on a coil being wound from an inner portion of thefirst body portion 302 adjacent its centre to an outer portion of thefirst body portion 302 adjacent its edge, is illustrated infigure 6a . Thebristles 308 being bent by thetube 303 being wound into a coil exert two components of a force on thetube 303. One such component of force acts on thetube 303 in a direction towards thefirst body portion 302 thereby minimizing the distance between different coil layers in the pile of coil layers created by thedevice 300. Furthermore, a second component of force acts on thetube 303 along a direction perpendicular to thefirst body portion 302 towards the centre of the first body portion which pushes the respective windings in each coil together as they are being wound such that the coils are wound more tightly. - The corresponding situation to that illustrated in
figure 6a i.e. the influence of thebristles 308 on a coil being wound from an outer portion of thefirst body portion 302 adjacent its edge to an inner portion of thefirst body portion 302 adjacent its centre, is illustrated infigure 6b . Thebristles 308 being bent by thetube 303 being wound into a coil exert two components of a force on thetube 303. One such component of force acts on thetube 303 in a direction towards thefirst body portion 302 thereby reducing the distance between different coil layers in the pile of coil layers created by thedevice 300. Furthermore, a second component of force acts on thetube 303 along a direction perpendicular to thefirst body portion 302 away from the centre of the first body portion which pushes the respective windings in each coil together as they are being wound such that the coils are wound more tightly. - The
tube 303 is passed through an annealing device (not shown) before it is wound into a coil using thedevice 300. Because of this an inert gas such as nitrogen is blown through thetube 303, using a back purge system (not shown), while using the windingdevice 300 of the present invention. In the windingdevice 300, atube 303 is automatically connected to the back purge system using an automatic clamping system, seefigure 7 . In this instance, if the winding process must be stopped becausetube 303 is not being annealed to specification upstream of the windingdevice 303, the tube in the system between the annealer and the windingdevice 300 which is not to specification is removed from the system and disposed of such that it will not become part of the finished coil. - The operation of the automatic clamping system in
figure 7 shall now be described. Theclamping system 317 is mounted to thefirst body portion 302 and has achamber 318 into which an inert gas is blown. Atube 303 being wound by the windingdevice 300, must before being wound, be first clamped in a position using theclamp 316 such that the end of thetube 303 extends into thechamber 318 so as to allow inert gas to be blown into thetube 303. For this to occur thetube 303 exiting theguide 305 enters theclamping system 317 by passing through the guide and clampactuator 319, and clampingelement 316, such that the end of the tube extends withinchamber 318. The guide and clampactuator 319 is moved towards the clampingelement 316 which clamps and seals thetube 303 before nitrogen back purging is initiated. The tube stays clamped throughout the winding process, which has been previously described, thereby enabling the complete length oftube 303 to be continuously back purged. At the end of the winding process the guide and clampactuator 319 is moved away from the clampingelement 316 which releases thetube 303. - It will be appreciated by persons skilled in the art that the above embodiments have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departure from the scope of the invention as defined by the appended claims. For example, the winding
device 300 may be used to wind elongate members not made from metal into a coil e.g. plastic. The windingdevice 300 may be able to rotate, and thereby wind a coil, in both clockwise and anti-clockwise directions. It is possible that, with all of the advantages previously discussed, an adaptation of the present invention would be able to wind a tube into a coil about a cylindrical body. Such an adaptation, which does not fall under the scope of the claims, is illustrated infigure 8 , wherein parts similar to those infigures 4A to 4C are labelled with like reference numerals increased by 100.
Claims (12)
- A device for winding an elongate member into a coil, the device comprising:at least one first body portion (302) adapted to rotate about a first axis (306);fixing means for fixing a portion of an elongate member (303) to at least one said first body portion;a guide portion (305) from which during use an elongate member extends into engagement with said fixing means, wherein said first body portion is adapted to move relative to said guide portion;force application means (304, 308) for applying a force (310) to said elongate member, said force comprising first (312) and second (314) force components acting in perpendicular first and second directions respectively, in order to restrict movement of said elongate member in directions parallel with said first and said second directions, said first force component acting towards said first body portion to which said elongate member is fixed; andcharacterised in that said first (302) body portion defines a planar surface and that said first force component acts towards said planar surface and parallel to said first axis.
- The device of claim 1, wherein said force application means comprises a second body portion (304) from which a plurality of bristles (308) extend.
- The device of claim 2, said second (304) body portion defines a planar surface.
- The device of any of claims 2 and 3, wherein at least one said first (302) or said second (304) body portion is adapted to move along said first axis (306).
- The device of any of the preceding claims, further comprising an annealing portion for annealing at least a portion of an elongate member (303) before it is wound into a coil.
- The device according to any of claims 2 to 4, wherein said first and said second body portions are adapted to move both relative to said guide portion along a second axis (307) perpendicular to said first axis (306).
- A method of winding an elongate member into a coil, characterised by the steps of:fixing a portion of an elongate member (303) extending from a guide portion (305) to a planar surface of a first body portion (302);rotating said first body portion about a first axis (306), thereby causing said elongate member to wind into a coil;applying a force to said elongate member using force application means (304, 308), the force (310) comprising first (312) and second (314) force components acting in perpendicular first and second directions respectively, in order to restrict movement of said elongate member in directions parallel with said first and said second directions, said first force component acting parallel to said first axis and towards said planar surface of said first body portion to which said elongate member is fixed; andmoving said first body portion relative to said guide portion.
- The method of claim 7, further comprising the step of moving said first body portion and said force application means relative to one another along said first axis.
- The method of claim7 or 8, wherein said elongate member (303) is wound into a coil from an inside portion of said first body portion (302) adjacent its centre to an outside portion of said first body portion adjacent its edge.
- The method of claim 7 or 8, wherein said elongate member (303) is wound into a coil from an outside portion of said first body portion (302) adjacent its edge to an inside portion of said first body portion adjacent its centre.
- The method of any of claims 7 to 10, further comprising the step of annealing said elongate member (303) before it is wound into a coil.
- The method of any of claims 7 to 11, wherein said force application means (304, 308) comprises a second body portion (304), and wherein said first and said second body portions are both moved relative to said guide portion along a second axis (307) perpendicular to said first axis (306).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0911394A GB2471495B (en) | 2009-07-01 | 2009-07-01 | A coil winding device |
PCT/GB2010/051059 WO2011001167A1 (en) | 2009-07-01 | 2010-06-25 | A coil winding device and method of winding an elongate member |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2448687A1 EP2448687A1 (en) | 2012-05-09 |
EP2448687B1 true EP2448687B1 (en) | 2017-11-08 |
Family
ID=41008565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10734540.7A Not-in-force EP2448687B1 (en) | 2009-07-01 | 2010-06-25 | A coil winding device and method of winding an elongate member |
Country Status (7)
Country | Link |
---|---|
US (1) | US9044799B2 (en) |
EP (1) | EP2448687B1 (en) |
KR (1) | KR101769126B1 (en) |
CN (1) | CN102470417B (en) |
GB (1) | GB2471495B (en) |
MX (1) | MX353513B (en) |
WO (1) | WO2011001167A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104588437A (en) * | 2013-10-30 | 2015-05-06 | 朱建平 | Production method and pipe-coiling device of non-ferrous metal coil pipes |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2649029A1 (en) * | 1975-10-30 | 1977-05-18 | Kobe Steel Ltd | WINDING MACHINE |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4202512A (en) * | 1972-03-07 | 1980-05-13 | Nicholson Thomas F Jr | Level layer winding method and apparatus |
US4017037A (en) * | 1975-03-31 | 1977-04-12 | Kovaleski Joseph J | Tension brush for wire spool |
US4057202A (en) * | 1976-09-02 | 1977-11-08 | Ernest Holmes Division, Dover Corporation | Winch cable roller assembly |
US4964583A (en) * | 1987-11-19 | 1990-10-23 | Kawasaki Steel Corporation | Method of transporting rapidly quenched ribbon and apparatus therefor |
US5002238A (en) * | 1990-01-19 | 1991-03-26 | Inhofer Harold G | Level wind cable guide |
JPH09227022A (en) * | 1996-02-26 | 1997-09-02 | Kureha Chem Ind Co Ltd | Method for cutting/winding prescribed length from long material and winding device |
DE19629600A1 (en) * | 1996-07-23 | 1998-01-29 | Schlafhorst & Co W | Bobbin winder |
JP3356264B2 (en) * | 1997-05-29 | 2002-12-16 | 日鉱金属株式会社 | High-speed winding method for narrow film |
JP2000264511A (en) * | 1999-03-17 | 2000-09-26 | Sumitomo Heavy Ind Ltd | Web winding device |
US6435447B1 (en) * | 2000-02-24 | 2002-08-20 | Halliburton Energy Services, Inc. | Coil tubing winding tool |
JP2002041647A (en) * | 2000-05-16 | 2002-02-08 | Sony Corp | Information providing device, server device and information processing method |
JP2001347313A (en) * | 2000-06-09 | 2001-12-18 | Daikin Ind Ltd | Method and apparatus for manufacturing soft metal tube |
CN2778769Y (en) * | 2003-09-19 | 2006-05-10 | 黄健 | Slow retracting device of automatic pipe crimping equipment |
DE102004016687B4 (en) * | 2004-04-05 | 2006-02-23 | Koenig & Bauer Ag | Device for pressing a material web onto the outer periphery of a supply roll comprises a pressure element with a brush strip |
EP1737772B1 (en) * | 2004-04-05 | 2008-03-19 | Koenig & Bauer AG | Device for pressing a material web |
US20080135662A1 (en) * | 2006-12-06 | 2008-06-12 | Chang Jing C | Melt-spun elastoester multifilament yarns |
-
2009
- 2009-07-01 GB GB0911394A patent/GB2471495B/en not_active Expired - Fee Related
-
2010
- 2010-06-25 US US13/381,711 patent/US9044799B2/en active Active
- 2010-06-25 EP EP10734540.7A patent/EP2448687B1/en not_active Not-in-force
- 2010-06-25 KR KR1020127002414A patent/KR101769126B1/en active IP Right Grant
- 2010-06-25 MX MX2012000109A patent/MX353513B/en active IP Right Grant
- 2010-06-25 CN CN201080034255.XA patent/CN102470417B/en not_active Expired - Fee Related
- 2010-06-25 WO PCT/GB2010/051059 patent/WO2011001167A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2649029A1 (en) * | 1975-10-30 | 1977-05-18 | Kobe Steel Ltd | WINDING MACHINE |
Also Published As
Publication number | Publication date |
---|---|
CN102470417A (en) | 2012-05-23 |
EP2448687A1 (en) | 2012-05-09 |
US9044799B2 (en) | 2015-06-02 |
MX353513B (en) | 2018-01-17 |
WO2011001167A1 (en) | 2011-01-06 |
KR20120097370A (en) | 2012-09-03 |
KR101769126B1 (en) | 2017-08-17 |
GB2471495A (en) | 2011-01-05 |
MX2012000109A (en) | 2012-05-22 |
CN102470417B (en) | 2015-08-19 |
US20120181366A1 (en) | 2012-07-19 |
GB2471495B (en) | 2014-06-04 |
GB0911394D0 (en) | 2009-08-12 |
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